four or more card types mtg Let's Play a Game - Duskmourn: House of Horror #105 (English) then that player shuffles his or her library. What exactly does it mean

That means you are not splashing that effect unless it is good enough for a real commitment to the color or lack thereof, just like how splashing Treetop Village is often not the best idea (but not always!)

Audrey Ramirez, The Engineer is one of several cards featured in Into the Inklands that proves that the sapphire cards in this set are perfect for players who want to take full advantage of item cards

The real strength of this commander is likely as a partner for color access and slowly gaining little bits of valueor doubling up on G/U commanders to go all-in on value

Aristocrats decks aim to gain value through repeatedly sacrificing one's own creatures, often including powerful sacrifice outlets, creatures with death triggers, recursion, and effects that make the act of sacrificing creatures more beneficial